AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the worldâs demand for smarter, cleaner â¦ better energy. Through its Windtec Solutions, AMSC provides wind turbine electronic controls and systems, designs and engineering services that reduce the cost of wind energy.
A tubular lock is a variation of a pin tumbler lock, where the pins are arranged in a circle facing the front of the lock and are operated by a tubular key. It was once referred to as an ACE lock, with ACE being a trademark of the Chicago Lock Company, but the generic term tubular lock is far more common these days.
Security alarm - Sensor types. 1  The hermetically sealed reed switch is a very common type of two piece sensor that operates with an electrically conductive reed switch that is either normally open or normally closed when under the influence of a magnetic field as in the case of proximity to the second piece which contains a magnet.